User's Manual Part 4
Release8
Glossary
Issue2,November2007 Draft5forRegulatoryReview 517
FSK
Frequency Shift Keying, a variation of frequency modulation to
transmit data, in which two or more frequencies are used.
FTP
File Transfer Protocol, defined in RFC 959. Utility that transfers of files
through TCP (Transport Control Protocol) between computing devices
that do not operate on the same platform. See
http://www.faqs.org/rfcs/rfc959.html
.
GlobalPositioning
System
Network of satellites that provides absolute time to networks on earth,
which use the time signal to synchronize transmission and reception
cycles (to avoid interference) and to provide reference for
troubleshooting activities.
GPS
Global Positioning System. A network of satellites that provides
absolute time to networks on earth, which use the time signal to
synchronize transmission and reception cycles (to avoid interference)
and to provide reference for troubleshooting activities.
GPS/3
Third-from-left LED in the module. In the operating mode for an
Access Point Module or Backhaul timing master, this LED is
continuously lit as the module receives sync pulse. In the operating
mode for a Subscriber Module or a Backhaul timing slave, this LED
flashes on and off to indicate that the module is not registered. In the
aiming mode for a Subscriber Module or a Backhaul timing slave, this
LED is part of a bar graph that indicates the quality of the RF link.
GUI
Graphical user interface.
High‐priorityChannel
Channel that supports low-latency traffic (such as Voice over IP) over
low-latency traffic (such as standard web traffic and file downloads).
To recognize the latency tolerance of traffic, this channel reads the
IPv4 Type of Service Low Latency bit.
HTTP
Hypertext Transfer Protocol, used to make the Internet resources
available on the World Wide Web. Defined in RFC 2068. See
http://www.faqs.org/rfcs/rfc2068.html
.
ICMP
Internet Control Message Protocols defined in RFC 792, used to
identify Internet Protocol (IP)-level problems and to allow IP links to be
tested. See
http://www.faqs.org/rfcs/rfc792.html.
indiscardscountField
How many inbound packets were discarded without errors that would
have prevented their delivery to a higher-layer protocol. (Some of
these packets may have been discarded to increase buffer space.)
inerrorscountField
How many inbound packets contained errors that prevented their
delivery to a higher-layer protocol.
innucastpktscount
Field
How many inbound non-unicast (subnetwork-broadcast or
subnetwork-multicast) packets were delivered to a higher-layer
protocol.